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Electron-electron interaction in one- and two-dimensional ferromagnetic (Ga,Mn)As
Neumaier, Daniel, Schlapps, Markus, Wurstbauer, Ursula, Sadowski, J., Reinwald, M., Wegscheider, Werner and Weiss, W. (2008) Electron-electron interaction in one- and two-dimensional ferromagnetic (Ga,Mn)As. Physical Review B 77, 041306.Date of publication of this fulltext: 05 Aug 2009 13:57
Article
DOI to cite this document: 10.5283/epub.7786
Abstract
We investigated the magnetotransport in high quality ferromagnetic (Ga,Mn)As films and wires. At low temperature the conductivity decreases with decreasing temperature without saturation down to 20 mK. Here we show that the conductivity decrease follows a ln(T/T0) dependency in two-dimensional films and a -1/sqrt(T) dependency in one-dimensional wires and is independent of an applied magnetic field. This behavior can be explained by the theory of electron-electron interaction.
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| Item type | Article |
| Journal or Publication Title | Physical Review B |
| Open Access Type: | Due to SHERPA/RoMEO |
|---|---|
| Volume: | 77 |
| Page Range: | 041306 |
| Date | 2008 |
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Dewey Decimal Classification | 500 Science > 530 Physics |
| Status | Published |
| Refereed | Yes, this version has been refereed |
| Created at the University of Regensburg | Yes |
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-77867 |
| Item ID | 7786 |
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